Method of and apparatus for packaging material



g A. M. BATES METHOD OF AND APPARATUS FOR PACKAGING MATERIAL Filed Jun 23, 1926 Patented Aug. 2, 1927.

UNITED STATES PATENT OFFICE.

ADELMER M. BATES, DECEASED, LATE CHICAGO, ILLINOIS; BY CLARA H. BATES,

ADMINISTRATRIX, OF CHICAGO, ILLINOIS, ASSIGNOR TO BATES VALVE BAG COM- PANY, OF CHICAGO, ILLINOIS, CORPORATION OF WEST VIRGINIA.

. METHOD OF AND APPARATUS FOR PACKAGING MATERIAL.

Application filed June 23, 1926. Serial No. 117,953.

This invention relates to a method of and apparatus for packaging material. More particularly it relates to -a method of packagingmaterial in successive portions of an elongated bag-tube. Further details of the invention will appear as the description proceeds.

In the accompanying drawing forming a part of this specification, Figure 1 is a diagrammatic elevation of one form of apparatus for carrying out the invention; Fig. 2

is a face view of a bag-tube suitable for use in carrying out this invention, successive stages of the method being diagrammatically indicated; Fig. 3 is a view similar to Fig. 2, showing a. modified form of reinforce- "ment; Fig. 4 is a side view of Fig. 3 viewed from the right of that figure.

A bag-tube 10, long enough to form a plu- ,rality of bags, has reinforcing cross-bands 11 at spaced intervals, the spaces being so arranged that the cross-bands will occur at the ends of bags formed from the tube. These reinforcing bands may extend entirely around the tube, as indicated in Fig. 1. or they might extend only across opposite sides, or in some instances across one side only. The reinforcing bands may be made in, or applied to, the tube in any convenient manner.

I In the apparatus shown, there is aguiding cage 12 suspended in any suitable man ner, as by rods 13. The cage has sets of rollers 14 and 15 between which the bag r tube may be threaded. Internal rollers 16 are shown in dotted lines, and suspend an internal float, not shown. A suitable float for this purpose is shown in my Patent No.

4 1,588,647, issued June 15, 1926. Inthe form vice having a discharge tube 17 with a terminal knife 18. Beneath feeding device 17, preferably two bag-lengths, there is a supporting platform 19. Part of a bag-length lower than platform 19, and to one side cross-bands 11 surround the tube form shown in Fig 3, reinforcing tapes 25.

of apparatus shown, there is a feeding de form 19. At this time one cross-band 11 will be in register with knife 18. At the same time other cross-bands 11 will be engaged by rollers 14 and 15. This engagement of the cross-bands-by rollers 14 and 15 aids in properly registering the bag-tube. The tube is .then shoved against spout 17, knife 18 forming a slit in the side of the tube, so

that the feedtube may deliver a charge of material into the bag-tube. After the charge has been delivered, the tube is swung back away from the feeding device and lowered until its bottom rests upon conveyor 20. The bag is then fed through the sewing machine.

tube may be severed between these seams,

either at the same time that the seams are sewed, as by a knife 24 operating in timed relation with the needles, or severance may.

be completed at any desired time. Preferably this severance is along the same line as slit 22.

In the form of tube shown in Fig. 2, In the are placed on opposite sides of the tube, and extended beyond the sides of the tube at 26. This form of reinforcement is some times preferable, as it furnishes an extension beyond the side of the tube which prevents Eavelling of the seam at the corner of the It will be readily understood that openings mightbe made through the side of the bag before the feeding operation, instead of being made by a knife on the feed tube, and itwill be readily understood that many other obvious modifications may be made within the scope of the appended claims.

What I claim is:

1. The method which consists in forming a bag-tube having reinforcing cross-bands at spaced intervals, filling charges into the tube through slits in said cross-bands and sewing tube-closing seams through the cross-bands. 1

2. The method which consists in forming a bag-tube having reinforcing erossbands thereon, moving the tube longitudinally past a filling station, forming a slit in each crossband and filling a charge of material at spaced intervals, moving the tube longi-j tudinally past a filling station, filling successive charges into the tube through openingsin the side thereof, and utilizing said cross-bands 1n reg1st'er1ng successive lengths I .Of the bag-tube at the filling station.

4. The method which consists in forrnin a bag-tube with reinforcing cross-bancis thereon, forming a slit through each crossband and the wall'of the tube, filling a charge through each' slit, forming a tube engage a cross-band'when the bag-tube is in proper register with the filling device.

6. In apparatus for filling abag-tube having reinforcing cross-bands at spaced intervals, afilling device and cooperating rollers adapted to engage the inside and the outside of the tube, respectively, the rollersbeing so located with respect to the filling device'thatthey engage a cross-band when the bag-tube is in proper register with the filling device.- 7

In testimony whereof, I have hereunto signed" my name to this specification.

CLARA H. BATES,

Administmtm'w of the Estate of Adelmer M. closure on each side of the slit, and-sever- Bates, Deceased. 

